diff --git a/.claude/settings.json b/.claude/settings.json
index dfad4e3..c3720b2 100644
--- a/.claude/settings.json
+++ b/.claude/settings.json
@@ -12,7 +12,10 @@
       "Bash(STEP_JOB=\"019c8344-4fc4-f59e-1009-c3733e28b46c\")",
       "Bash(__NEW_LINE_94a6a83a7608650e__ curl -sk -H \"Authorization: Bearer $TOKEN\" \"http://localhost/api/w/admins/jobs_u/completed/get/$STEP_JOB\")",
       "Bash(docker start:*)",
-      "Bash(docker stop:*)"
+      "Bash(docker stop:*)",
+      "WebFetch(domain:tomo1joy.com)",
+      "Bash(bash wm-api.sh update-flow f/mail/mail_filter flows/mail_filter.flow.json)",
+      "Read(//c/Users/akira/Develop/windmill//**)"
     ]
   }
 }
diff --git a/backend/apps/mail/migrations/0003_add_infoseek_account.py b/backend/apps/mail/migrations/0003_add_infoseek_account.py
new file mode 100644
index 0000000..7493a39
--- /dev/null
+++ b/backend/apps/mail/migrations/0003_add_infoseek_account.py
@@ -0,0 +1,18 @@
+# Generated by Django 5.0 on 2026-02-22 07:30
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('mail', '0002_alter_mailemail_feedback_alter_mailsender_rule'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='mailemail',
+            name='account',
+            field=models.CharField(choices=[('xserver', 'Xserver'), ('gmail', 'Gmail'), ('hotmail', 'Hotmail'), ('infoseek', 'Infoseek (転送)')], max_length=20, verbose_name='アカウント'),
+        ),
+    ]
diff --git a/backend/apps/mail/models.py b/backend/apps/mail/models.py
index 2f5c4a6..09cdd8f 100644
--- a/backend/apps/mail/models.py
+++ b/backend/apps/mail/models.py
@@ -45,6 +45,7 @@ ACCOUNT_CHOICES = [
     ('xserver', 'Xserver'),
     ('gmail', 'Gmail'),
     ('hotmail', 'Hotmail'),
+    ('infoseek', 'Infoseek (転送)'),
 ]
 
 FEEDBACK_CHOICES = [
diff --git a/docker-compose.yml b/docker-compose.yml
index 34742e9..7cbcc80 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -31,8 +31,6 @@ services:
       DB_PORT: 5432
       SECRET_KEY: ${SECRET_KEY}
       DEBUG: "True"
-      MAIL_API_KEY: ${MAIL_API_KEY}
-      FRONTEND_URL: http://localhost:3000
     ports:
       - "8000:8000"
     volumes:
diff --git a/frontend/src/app/mail/history/page.tsx b/frontend/src/app/mail/history/page.tsx
index c449a4a..5d352e7 100644
--- a/frontend/src/app/mail/history/page.tsx
+++ b/frontend/src/app/mail/history/page.tsx
@@ -31,6 +31,7 @@ const ACCOUNT_LABELS: Record<string, string> = {
   gmail: 'Gmail',
   hotmail: 'Hotmail',
   xserver: 'Xserver',
+  infoseek: 'Infoseek (転送)',
 };
 
 export default function MailHistoryPage() {
@@ -97,6 +98,7 @@ export default function MailHistoryPage() {
             <option value="gmail">Gmail</option>
             <option value="hotmail">Hotmail</option>
             <option value="xserver">Xserver</option>
+            <option value="infoseek">Infoseek (転送)</option>
           </select>
           <select
             value={filterVerdict}